In terms of hair these days, a guy can't get arrested. Short of growing it inwards (Elton John?), it seems that anything goes.

Not to betray any galloping senility (see J. Holmstrom's punk lib manifesto, Jan. CREEM letters section), but ah, for the good old days... At seventeen my parents tossed me out of the house for having long hair. I mean, back then we had a code and you stuck to it. You grew your hair long and got tossed out of the house for being such a rebel like all your other friends or you were an asshole. Period. (That, too.) And when we said long, we meant it. None of this little-bit-over-the-ears John Denver stuff (J. Holmstrom, beware!)—no, we saw right through that. We were talking Jim Dandy—and for everybody!